Reconfigurable Diffserv Based Qos Model for Real-Time Traffic.

Allaf, AhmadF.AL; Jabbar, A. I. A.

doi:10.21474/ijar01/3859

IJAR

2017

DOI: 10.21474/ijar01/3859

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Reconfigurable Diffserv Based Qos Model for Real-Time Traffic.

AhmadF.AL Allaf¹,

A. I. A. Jabbar²

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2018

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“…Fig.1shows a block diagram of the RSM scheduler[20]. Packets are first divided into classes by marking the Type of Service (ToS) byte in the IP header.…”

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confidence: 99%

Simevents/ Stateflow base Reconfigurable Scheduler in IP Internet Router

AL-Allaf¹

2018

IJCDS

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Quality of Service (QoS) is becoming increasingly important with the rise of multimedia applications (such as voice over IP (VoIP), video conferencing, and so on) in public data networks. These applications demand real-time service, while the networks should still be able to transfer also other traffic reliably (e.g., data, email, and WWW). In this paper, we concern how to improve the QoS of multimedia applications (Voice and video traffic) in DiffServ internet router by using the reconfigurable technique. Therefore we design an QoS model called Reconfigurable Scheduling Model (RSM) for real-time traffic in Diffserv router. In this model, we use the strict priority technique for the voice traffic to reduce the delay and then improve the QoS. While for video traffic, a hardware reconfigurable technique is used to provide the flexibility that improves QoS levels when compared to other techniques such as software-only implementations. This permits the run-time reconfiguration of the router resources, i.e., to change their functionality (from one scheduling algorithm to another), to adapt the fluctuation in traffic parameter. We choose two of the most widely used schedulers (CBWFQ, and MDRR) to support real-time allocations and to improve the QoS of video traffic. The reconfiguration or the switching between those two schedulers is based on queuing delay of the video traffic. To evaluate the proposed approach, the queuing model was built and simulated with MATLAB Simevents and Stateflow components. The result of simulation shows an improvement in QoS of voice and video traffics.

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“…Fig.1shows a block diagram of the RSM scheduler[20]. Packets are first divided into classes by marking the Type of Service (ToS) byte in the IP header.…”

mentioning

confidence: 99%

Simevents/ Stateflow base Reconfigurable Scheduler in IP Internet Router

AL-Allaf¹

2018

IJCDS

View full text Add to dashboard Cite

show abstract

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Reconfigurable Diffserv Based Qos Model for Real-Time Traffic.

Cited by 1 publication

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Simevents/ Stateflow base Reconfigurable Scheduler in IP Internet Router

Simevents/ Stateflow base Reconfigurable Scheduler in IP Internet Router

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